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LIN1021-4916 : Security Advisory - xserver-xorg - CVE-2022-46340

Created: Dec 13, 2022    Updated: Jan 19, 2023
Resolved Date: Jan 19, 2023
Found In Version: 10.21.20.1
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace

Description

A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.

https://nvd.nist.gov/vuln/detail/CVE-2022-46340

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